216279996 has 48 divisors (see below), whose sum is σ = 510935040. Its totient is φ = 71202880.

The previous prime is 216279979. The next prime is 216280003. The reversal of 216279996 is 699972612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451285 + ... + 451763.

It is an arithmetic number, because the mean of its divisors is an integer number (10644480).

Almost surely, 2^216279996 is an apocalyptic number.

It is an amenable number.

216279996 is an abundant number, since it is smaller than the sum of its proper divisors (294655044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216279996 is a wasteful number, since it uses less digits than its factorization.

216279996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874 (or 872 counting only the distinct ones).

The product of its digits is 734832, while the sum is 51.

The square root of 216279996 is about 14706.4610290851. The cubic root of 216279996 is about 600.2591436138.

The spelling of 216279996 in words is "two hundred sixteen million, two hundred seventy-nine thousand, nine hundred ninety-six".